Fluid Dynamics

, Volume 43, Issue 4, pp 573–582

Turbulent flows in channels with injection. results of large eddy simulation and the two-equation turbulence model

Authors

  • K. N. Volkov
  • V. N. Emel’yanov
Article

DOI: 10.1134/S0015462808040091

Cite this article as:
Volkov, K.N. & Emel’yanov, V.N. Fluid Dyn (2008) 43: 573. doi:10.1134/S0015462808040091
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Abstract

Turbulent flows in channels with intense distributed injection are modeled using the large eddy method and the two-equation k-ɛ turbulence model. The calculations are carried out for different velocities of injection from the channel walls. For a channel with one-sided injection the results of large eddy simulation are in good agreement with the measured data, whereas the calculations in accordance with the k-ɛ model give a less convex cross-sectional velocity profile and an appreciable error in determining the surface friction coefficient on the impermeable wall and also have certain other shortcomings. In the case of two-sided injection, the results of the calculations by the large eddy method and the k-ɛ model are in good agreement with one another and the data of physical experiments.

Keywords

turbulencelarge eddy simulationchannels with injection

Copyright information

© Pleiades Publishing, Ltd. 2008